855805475 has 24 divisors (see below), whose sum is σ = 1214818080. Its totient is φ = 585861120.

The previous prime is 855805441. The next prime is 855805549. The reversal of 855805475 is 574508558.

It is a happy number.

It is not a de Polignac number, because 855805475 - 2¹⁴ = 855789091 is a prime.

It is a super-2 number, since 2×855805475² = 1464806022079951250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110531 + ... + 118019.

It is an arithmetic number, because the mean of its divisors is an integer number (50617420).

Almost surely, 2^855805475 is an apocalyptic number.

855805475 is a deficient number, since it is larger than the sum of its proper divisors (359012605).

855805475 is a wasteful number, since it uses less digits than its factorization.

855805475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8159 (or 8154 counting only the distinct ones).

The product of its (nonzero) digits is 1120000, while the sum is 47.

The square root of 855805475 is about 29254.1531239583. The cubic root of 855805475 is about 949.4199506157.

The spelling of 855805475 in words is "eight hundred fifty-five million, eight hundred five thousand, four hundred seventy-five".